Global Patent Index - EP 1086474 A1

EP 1086474 A1 2001-03-28 - SPARK IGNITION SYSTEM HAVING A CAPACITIVE DISCHARGE SYSTEM AND A MAGNETIC CORE-COIL ASSEMBLY

Title (en)

SPARK IGNITION SYSTEM HAVING A CAPACITIVE DISCHARGE SYSTEM AND A MAGNETIC CORE-COIL ASSEMBLY

Title (de)

ZÜNDSYSTEM, MIT EINEM KAPAZITIVEN ENTLADUNGSSYSTEM UND EINER MAGNETISCHEN KERN-SPULENANORDNUNG

Title (fr)

SYSTEME A ALLUMAGE PAR ETINCELLE MUNI D'UN SYSTEME A DECHARGE CAPACITIVE ET D'UN ENSEMBLE NOYAU-BOBINE MAGNETIQUE

Publication

EP 1086474 A1 (EN)

Application

EP 99928595 A

Priority

  • US 9913265 W
  • US 9602298 A

Abstract (en)

[origin: WO9965041A1] A spark ignition system for an internal combustion engine has a capacitive discharge (CD) system connected to a coil-per-plug (CCP) magnetic core-coil assembly. The spark ignition system is connected to a spark plug and is adapted to initiate an ignition wherein a spark is produced across the gap of the spark plug. The spark ignition system includes a magnetic core-coil assembly having an amorphous metal magnetic core, a primary coil and a secondary coil for a high voltage output to be fed to a spark plug. The CD system is charged and rapidly discharged through the primary coil of the magnetic core-coil assembly using a silicon controlled rectifier (SCR) as the switch. Operation of the SCR is controlled by circuitry that controls the firing of the spark ignition system. The magnetic core-coil assembly acts as a pulse transformer, so that voltage across its secondary coil is related to the turns ratio of secondary to primary.

IPC 1-7 (main, further and additional classification)

H01F 38/12; F02P 3/01

IPC 8 full level (invention and additional information)

F02P 3/01 (2006.01); F02P 3/02 (2006.01); F02P 15/00 (2006.01); H01F 38/12 (2006.01)

CPC (invention and additional information)

H01F 38/12 (2013.01); F02P 3/02 (2013.01)

Citation (search report)

See references of WO 9965041A1

Designated contracting state (EPC)

DE FR GB IT SE

EPO simple patent family

WO 9965041 A1 19991216; AU 4562999 A 19991230; BR 9911087 A 20020129; CA 2334868 A1 19991216; CN 1312947 A 20010912; EP 1086474 A1 20010328; JP 2002518619 A 20020625; JP 4380917 B2 20091209; US 6123062 A 20000926

INPADOC legal status


2003-07-16 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030101

2001-03-28 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001204

2001-03-28 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB IT SE